This is a type of designer who specializes in the design of intimate apparel that is, lingerie (bras, corsets, panties, slips, teddys, thongs, and undergarments) and sleeping apparel (nightgowns, pajamas, peignoir sets, and sleepshirts). Usually, a company will hire a bra designer who has experience in fit and shapewear for this area of the intimate apparel market. Sleep-wear is traditionally designed by someone with experience in lace and embroidery design, as well as in cut-and-sew knits.
Historical Dictionary of the Fashion Industry. Francesca Sterlacci and Joanne Arbuckle.